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Published in:

Volume 2 Issue 1
January-2015
eISSN: 2349-5162

Unique Identifier

JETIR1501014

Page Number

82-86

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Title

Watermarking Technique Based On Wavelet Transform For Color Image

ISSN

2349-5162

Cite This Article

"Watermarking Technique Based On Wavelet Transform For Color Image ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.2, Issue 1, page no.82-86, January-2015, Available :http://www.jetir.org/papers/JETIR1501014.pdf

Abstract

A good quality watermarking scheme should have maximum PSNR, ideally Correlation Factor equals to 1and should have maximum watermark information hiding capacity. In this paper,copyright protection is proposed for a new colour image watermarking scheme. It is based on embedding multiple watermark bits into the luminance component or the blue component of a colour image in discrete wavelet domain. The intend scheme uses image normalization technique to reduce the effect of synchronization errors caused by geometric attacks. The extraction process does not require the original image. The scrambled watermark is embedded in middle frequency sub band. The security levels are increased by generating PN sequence which is depending on periodicity of watermark image. The image scrambling is applied by using Arnold Transform. The decomposition is done with the help of ‘Haar’ which is simple, symmetric and orthogonal wavelet and the direct weighting factor is used in watermark embedding and extraction process. The scheme results in exact recovery of watermark with standard database images of size 512x512, giving Correlation Factor equals to 1. The PSNR with weighting factor 0.02 is up to 48.51 dBs. The presented scheme is non blind and embeds binary watermark of 64x64 size.

Key Words

Watermarking, color image, Wavelet domain, normalization, Geometric attacks, Discrete Wavelet Transform, Scrambling, Color space.

Cite This Article

"Watermarking Technique Based On Wavelet Transform For Color Image ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.2, Issue 1, page no. pp82-86, January-2015, Available at : http://www.jetir.org/papers/JETIR1501014.pdf

Publication Details

Published Paper ID: JETIR1501014
Registration ID: 150020
Published In: Volume 2 | Issue 1 | Year January-2015
DOI (Digital Object Identifier):
Page No: 82-86
ISSN Number: 2349-5162

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Cite This Article

"Watermarking Technique Based On Wavelet Transform For Color Image ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.2, Issue 1, page no. pp82-86, January-2015, Available at : http://www.jetir.org/papers/JETIR1501014.pdf




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